1 /*
2 * Copyright (C) 2016 Intel Corporation. All rights reserved.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
16 */
17
18 #include <errno.h>
19 #include <string.h>
20 #include <unistd.h>
21
22 #include <shared/scratchbuf.h>
23
24 #include "testsuite.h"
25
test_scratchbuf_onlystack(const struct test * t)26 static int test_scratchbuf_onlystack(const struct test *t)
27 {
28 struct scratchbuf sbuf;
29 const char *smallstr = "xyz";
30 char buf[3 + 2];
31 char buf2[3 + 1];
32
33 scratchbuf_init(&sbuf, buf, sizeof(buf));
34 assert_return(scratchbuf_alloc(&sbuf, strlen(smallstr) + 1) == 0, EXIT_FAILURE);
35 assert_return(sbuf.need_free == false, EXIT_FAILURE);
36 scratchbuf_release(&sbuf);
37
38 scratchbuf_init(&sbuf, buf2, sizeof(buf2));
39 assert_return(scratchbuf_alloc(&sbuf, strlen(smallstr) + 1) == 0, EXIT_FAILURE);
40 assert_return(sbuf.need_free == false, EXIT_FAILURE);
41 scratchbuf_release(&sbuf);
42
43 memcpy(scratchbuf_str(&sbuf), smallstr, strlen(smallstr) + 1);
44 assert_return(strcmp(scratchbuf_str(&sbuf), smallstr) == 0, EXIT_FAILURE);
45
46 return 0;
47 }
48 DEFINE_TEST(test_scratchbuf_onlystack,
49 .description = "test scratchbuf for buffer on stack only");
50
51
test_scratchbuf_heap(const struct test * t)52 static int test_scratchbuf_heap(const struct test *t)
53 {
54 struct scratchbuf sbuf;
55 const char *smallstr = "xyz";
56 const char *largestr = "xyzxyzxyz";
57 const char *largestr2 = "xyzxyzxyzxyzxyz";
58 char buf[3 + 1];
59
60 scratchbuf_init(&sbuf, buf, sizeof(buf));
61
62 /* Initially only on stack */
63 assert_return(scratchbuf_alloc(&sbuf, strlen(smallstr) + 1) == 0, EXIT_FAILURE);
64 assert_return(sbuf.need_free == false, EXIT_FAILURE);
65 memcpy(scratchbuf_str(&sbuf), smallstr, strlen(smallstr) + 1);
66
67 /* Grow once to heap */
68 assert_return(scratchbuf_alloc(&sbuf, strlen(largestr) + 1) == 0, EXIT_FAILURE);
69 assert_return(sbuf.need_free == true, EXIT_FAILURE);
70 assert_return(sbuf.size == strlen(largestr) + 1, EXIT_FAILURE);
71 assert_return(strcmp(scratchbuf_str(&sbuf), smallstr) == 0, EXIT_FAILURE);
72 memcpy(scratchbuf_str(&sbuf), largestr, strlen(largestr) + 1);
73 assert_return(strcmp(scratchbuf_str(&sbuf), largestr) == 0, EXIT_FAILURE);
74
75 /* Grow again - realloc should take place */
76 assert_return(scratchbuf_alloc(&sbuf, strlen(largestr2) + 1) == 0, EXIT_FAILURE);
77 assert_return(sbuf.need_free == true, EXIT_FAILURE);
78 assert_return(sbuf.size == strlen(largestr2) + 1, EXIT_FAILURE);
79 memcpy(scratchbuf_str(&sbuf), largestr2, strlen(largestr2) + 1);
80 assert_return(strcmp(scratchbuf_str(&sbuf), largestr2) == 0, EXIT_FAILURE);
81
82 scratchbuf_release(&sbuf);
83
84 return 0;
85 }
86 DEFINE_TEST(test_scratchbuf_heap,
87 .description = "test scratchbuf for buffer on that grows to heap");
88
89 TESTSUITE_MAIN();
90